Punch.



W. J. ONEAL.

PUNCH.

APPLICATION FILED FEB. 3, 1913.

Patented Dec. 23, 1913.

min

Ill/Ill! ATTORNEYS FFTCE.

WILLIAM J. ONEAL, OF NORTH BRADDOCK, PENNSYLVANIA, ASSIGNOE OF ONE-THIRDTO VAN K. CROZIER, OF BRADDOCK, PENNSYLVANIA, AND ONE JJHIBCD TO RUDOLPHL. ONEAL, OF HOMESTEAD, PENNSYLVANIA.

PUNCH.

J1,tl82,209.

Application filed. February 3, 1913.

To all whom it may concern Be it known that 1, WILLIAM J. ONEAL, acitizen of the United States of America, residing at North Braddock, inthe county of Allegheny and State of Pennsylvania, have invented certainnew and useful Improvements in Punches, of which the following is aspecification, reference being had therein to the accompanying drawing.

This invention relates to punches, and the primary object of myinvention is to provide a screw punch that is operated through themedium of gears and a ratchet mechanism, whereby the screw of said punchcan be expeditiously adjusted and a piece of work quickly operated upon.

Another object of this invention is to provide a ball bearing screwpunch consisting of comparatively few parts that are easily assembled toprovide a strong, durable and inexpensiv device.

A. further object of this invention is to provide a ball bearing screwpunch that has interchangeable punches and dies that are arrangedwhereby they can be renewed or others substituted therefor according tothe piece of work to be operated upon.

With the above and other objects in view the invention resides in thenovel construc tion, combination and arrangement of parts to behereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein Figure 1 is a verticalsectional view of a portion of a ball bearing screw punch in accordancewith this invention, Fig. 2 is a side elevation of the frame of thepunch, Fig. 3 is a front elevation of the same, Fig. i is a plan of theframe, Fig. 5 is a View illustrating details of a detachable bearingplate, and Fig. 6 illustrates views of a screw sleeve or plunger.

A punch in accordance with this invention comprises a frame having acylindrical housing 1 terminating in a throat 2 and a goose neck 3. Thegoose neck 3 is reinforced by a web 4: connected to the housing 1 by aweb 5 that serves as a handle whereby the punch can be easily carried.One side of the housing 1 is provided with a rectangular enlargement 6having a rectangular opening 7. The opening 7 is closed by a bearingplate 8 having a central cylindrical bearing Specification of LettersPatent.

Patented Dec. 23,1913.

Serial No. 746,008.

9. The bearing plate 8 is slotted, as at 10 and connected to theenlargement {3 by screw bolts 11 or other fastening means. The bearingplate 8 has oppositely disposed grooves or recesses 12 to receive ribs13, carried by the enlargement 6, and these ribs guide the bearing plate8 when said bearing plate is adjusted through the medium of a set screwlet, carried by an extension 15 of the housing 1. By loosening the screwbolts 11 and adjusting the set screw 1 1 the bearing plate 8 can beshifted to a desired posi tion and then locked by tightening the screwbolts 11.

Journaled in the bearing 9 of the plate 8 is an operating shaft 16 andmovably mounted upon the outer end of said shaft is the bifurcated end17 of a handle socket 18. The bifurcated end of the handle s cket 13provides clearance for a ratchet wheel 19 mounted upon the outer end ofthe shaft 16, and engaging said ratchet wheel is a spring pressed pawl20 that rotates the ratchet wheel 19 as the handle socket 18 isoscillated or swung about the shaft 16. The elements 17 to 20 inclusiveconstitute a well known means of manual manipulation for imparting arotary movement to the shaft 16.

The inner end of tl e shaft 16 has a beveled gear Wheel 21 meshing witha similar gear wheel 22, keyed or otherwise mounted, as at 23 upon thestem 21 of a screw 25. The screw 25 is adjustably mounted in thethreaded socket 26 of a sleeve or plunger 27 slidably mounted in thethroat 2 of the housing 1. The inner wall of the throat 2 has a rib 28engaging in a longitudinal groove 29 provided therefor in the sleeve orplunger 27, said rib preventing the sleeve or plunger from rotatingrelatively to the screw 25 and the throat 2.

The outer end of the sleeve or plunger 27 has a seat 30 for anon-rotatable punch 31, which has the head thereof retained inengagement with the seat 30 by a nut 32. The punch 31 is adapted tocooperate with a suitable die supported by the goose neck 3 in operatingupon a piece of work.

The stem 24 of the screw 25 extends into a socket 33 provided thereforin a thrust bearing 84 fitted in the end of the housing 1. Cooperatingwith the thrust bearing 34 is another bearing 35 that encircles the stem24 and has a ball race 36 for anti-frictional balls 37 that insure anon-frictional rotation of the screw relatively to the thrust bearing34.

It is apparent that when the shaft 16 is revolved through the medium ofthe ratchet mechanism or other manually operated means that a rotarymovement is imparted to the screw 25, which serves for shifting orfeeding the sleeve or plunger 27 longitudinally of the throat 2. It isthrough the medium of this screw and the mechanism employed for rotatingthe same that considerable power can be applied for operating upon apiece of work.

I attach considerable importance to the simplicity of construction,particularly to the manner in which the parts are assembled, andespecially the adjustable bearing plate 8 which permits of the gearwheels 21 and 22 being properly meshed or located.

While in the drawing there is illustrated a preferred embodiment of theinvention, it is to be understood that the structural elements aresusceptible to such variations and modifications as fall within thescope of the appended claims.

What I claim is 2- 1. A punch of the type described comprising a housinghaving a throat and a goose neck, an adjustable bearing plate supportedby one side of said housing, a revoluble shaft journaled in said bearingplate, a plunger movable longitudinally of the throat of said housingand provided with a screw socket, a punch carried by said plunger, arevoluble screw extending into the screw socket of said plunger foradjusting said plunger longitudinally of the throat of said housing, andmeans located within said housing and operated through the medium ofsaid shaft for imparting a rotary movementto said screw.

2. A punch of the type described comprising a housing having a throat,an adjustable bearing plate carried by said housing, a shaft journaledin said bearing plate, a plunger movable longitudinally of the throat ofsaid housing and adapted to support a punch, a screw extending into saidplunger whereby said plunger can be adjusted longitudinally of thethroat of said housing, thrust bearings in connection with one end ofsaid screw, beveled gears actuated by said shaft for imparting movementto said screw, and anti-frictional balls in connection with said thrustbearings.

3. A punch of the type described com prising a housing having a throat,an adjustable bearing plate carried by said housing, a shaft journaledin said bearing plate, a plunger movable longitudinally of the throat ofsaid housing and adapted to support a punch, a screw extending into saidplunger whereby said plunger can be adjusted longitudinally of thethroat of said housing, thrust bearings in connection with one end ofsaid screw, beveled gears actuated by said shaft for imparting movementto said screw, anti-frictional balls in connection with said thrustbearings, and means including a ratchet mechanism in connection withsaid shaft to facilitate manually rotating the same.

In testimony whereof I afiix my signature in the presence of twowitnesses.

WILLIAM J. ONEAL.

Witnesses J. P. APPLEMAN, KATHERINE ERRETT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Iatents, Washington, D. G.

